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[codeview] Dump the file checksum substream

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llvm-svn: 257910
This commit is contained in:
Reid Kleckner 2016-01-15 18:06:25 +00:00
parent 499dd6ea19
commit 94ce0c4f6b
2 changed files with 52 additions and 0 deletions
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14
include/llvm/DebugInfo/CodeView/Line.h
View File

@ -137,6 +137,20 @@ struct InlineeSourceLine {
// ulittle32_t Files[];
};
enum class FileChecksumKind : uint8_t {
None,
MD5,
SHA1,
SHA256
};
struct FileChecksum {
ulittle32_t FileNameOffset; // Offset of filename in string table substream.
uint8_t ChecksumSize;
uint8_t ChecksumKind; // FileChecksumKind
// Checksum bytes follow.
};
} // namespace codeview
} // namespace llvm

38
tools/llvm-readobj/COFFDumper.cpp
View File

@ -94,6 +94,8 @@ private:
const SectionRef &Section,
StringRef SectionContents);
void printCodeViewFileChecksums(StringRef Subsection);
void printCodeViewInlineeLines(StringRef Subsection);
void printMemberAttributes(MemberAttributes Attrs);
@ -767,6 +769,13 @@ static const EnumEntry<uint8_t> FunctionOptionEnum[] = {
LLVM_READOBJ_ENUM_CLASS_ENT(FunctionOptions, ConstructorWithVirtualBases),
};
static const EnumEntry<uint8_t> FileChecksumKindNames[] = {
LLVM_READOBJ_ENUM_CLASS_ENT(FileChecksumKind, None),
LLVM_READOBJ_ENUM_CLASS_ENT(FileChecksumKind, MD5),
LLVM_READOBJ_ENUM_CLASS_ENT(FileChecksumKind, SHA1),
LLVM_READOBJ_ENUM_CLASS_ENT(FileChecksumKind, SHA256),
};
template <typename T>
static std::error_code getSymbolAuxData(const COFFObjectFile *Obj,
COFFSymbolRef Symbol,
@ -1030,6 +1039,10 @@ void COFFDumper::printCodeViewSymbolSection(StringRef SectionName,
printCodeViewInlineeLines(Contents);
break;
case ModuleSubstreamKind::FileChecksums:
printCodeViewFileChecksums(Contents);
break;
case ModuleSubstreamKind::Lines: {
// Holds a PC to file:line table. Some data to parse this subsection is
// stored in the other subsections, so just check sanity and store the
@ -1701,6 +1714,31 @@ void COFFDumper::printCodeViewSymbolsSubsection(StringRef Subsection,
}
}
void COFFDumper::printCodeViewFileChecksums(StringRef Subsection) {
StringRef Data = Subsection;
while (!Data.empty()) {
DictScope S(W, "FileChecksum");
const FileChecksum *FC;
error(consumeObject(Data, FC));
if (FC->FileNameOffset >= CVStringTable.size())
error(object_error::parse_failed);
StringRef Filename =
CVStringTable.drop_front(FC->FileNameOffset).split('\0').first;
W.printHex("Filename", Filename, FC->FileNameOffset);
W.printHex("ChecksumSize", FC->ChecksumSize);
W.printEnum("ChecksumKind", uint8_t(FC->ChecksumKind),
makeArrayRef(FileChecksumKindNames));
if (FC->ChecksumSize >= Data.size())
error(object_error::parse_failed);
StringRef ChecksumBytes = Data.substr(0, FC->ChecksumSize);
W.printBinary("ChecksumBytes", ChecksumBytes);
unsigned PaddedSize =
RoundUpToAlignment(FC->ChecksumSize + sizeof(FileChecksum), 4) -
sizeof(FileChecksum);
Data = Data.drop_front(PaddedSize);
}
}
void COFFDumper::printCodeViewInlineeLines(StringRef Subsection) {
StringRef Data = Subsection;
uint32_t Signature;